Related Articles

"We have a number of people we are looking at ... some of them are known to each other," he said.

Detectives had previously appealed for public information about a dual cab ute captured on CCTV in Campbell Town on the night of the killing, but Mr Frame said the vehicle was no longer of interest.

A team of five detectives started a review of the case in November and the reward, which will come from the police kitty, has been approved by the state government.

"It is a lot of money but investigations are an expensive proposition as well so an investigation that takes two, three or four years with all the resources we put in ... if we can encourage someone to do this it's a reasonable return," Mr Frame said.